Features:- Replacement USB Charger Charging Cradle Dock Cable Adapter for Fitbit Alta HR Heart Rate + Fitness Wristband. Not fit for Fitbit Alta Smart Watch.- 100% Brand new and high quality. ONLY Fitbit Alta HR USB (Charging cable included). Fitbit Alta HR Heart Rate + Fitness Wristband is NOT included.- Compact and lightweight, unique Clip Design, make your Smart Watch charging become more convenient.- Power protection - Short circuit protection.- Reset Function - With a RESET BUTTON on one end of the USB charger.- Charge Time: Appr. 1.5 hours(under shut down state)- Input: 5V / 1A- Output: 5V / 100mA- Material: ABS Plastic Dock and TPU cable- Cable length: 450mmReset Operation:* Connect one end of the USB charger to a USB slot of a computer or any USB adapter, the other end to your Fitbit Alta HR Smart Fitness Tracker.* Quickly click the reset button on another end of the USB charger 3 times within 8 seconds, your Fitbit Alta HR Smart Fitness Tracker will get restarted.(This function is against a system crash)USB CHARGER: Replacement USB Charger Charging Cradle Dock Cable Adapter for Fitbit Alta HR Smart Fitness Tracker. Not fit for Fitbit Alta Smart Fitness Tracker. Note: Please do not use fast charging adapter. If you connect it to the adapter, the electricCONVENIENT TO CHARGE: Compact and lightweight, unique Clip Design, make your Smart Watch charging become more convenient.RESET FUNCTION: With a reset button on one end of the USB charger. Quickly click the reset button 3 times within 8 seconds, your Fitbit Alta HR Smart Fitness Tracker will get restarted.(This function is against a system crash)POWER PROTECTION: Short circuit protection for a longer life span of your fitness tracker.CHARGING TIME: Appr. 1.5 hours under shut down state. We advise that you Connect to USB ports on PC or laptop for stable charging. It is better to charge your watch before the battery runs out.